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DaveDCB
Well-known member
You know given the amount of time spent messing you could have swapped over and sharpened your flails 
Shovelhands
Well-known member
Case drain can often have more than one port. My gut feeling is the case drain is fine where it is. But the experts will tell you no doubt. You could test it by removing the plug from the other side and seeing if oil is passing through from the case drain line?
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Monkeybusiness
Well-known member
You are not wrong!You know given the amount of time spent messing you could have swapped over and sharpened your flails
The motor has been out as it blew a seal and was repaired, then after a couple of hours use appeared to have done the same thing again so I brought it home (didn’t want to contaminate the job with more oil) pulled it back out to clean it up etc. Was about to drop it to my hydraulic fella and thought it might be sensible to try it on a digger first whilst opened up and visible, but didn’t have a machine here until last night to run it up (and also see if the speed controller would also switch direction, which I now know it doesn’t).
It ideally wants to be mounted on a machine to pull the bars the flails are held on but you can’t do that without reassembling it. The hose routing is ridiculously tight too - you can ‘just’ get them on with the motor mounted.
I also needed to fit new belts which is far easier on this setup with the motor removed .
I’d resigned myself to swapping the flails around today as it is all back together now but I might just open it up again and switch the hoses as Aiden suggested right at the start as the bars look like a bit of a bitch to pull…
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Monkeybusiness
Well-known member
Incidentally the motor’s new oil leak appeared to be from a bonded washer on the case drain banjo when running constantly which surprised me as I didn’t expect much oil to pass through the case drain during normal running (only when running down). Does this suggest the motor is heavily worn)
Mick-the-fitter
It’s what I do!
Cross line relief?
Shovelhands
Well-known member
There will always be an element of case drain, there will be a certain amount it is ‘allowed’ to pass and still be considered in reasonable condition. But in reality you’ll run it until you notice it not operating as well as it used to! Important to have free flowing case drains.
I’d expect virtually no oil to pass through the case drain when running down.
Gecko
Well-known member
Beyond my experience, but I would have thought the drain hose would have no (minimal) restriction, so there should be almost no pressure in the line.
Doesn't a (external) leak at the drain port suggest significant pressure?
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DaveDCB
Well-known member
To be fair I’ve completely given up with the flail on my 6ton, I’ve spent so much time messing around with it, replacing pipes, seal kits etc I just can’t be bothered with it anymore and just pay my hedge cutting man a afew extra hours to do the ditches/ponds .. bomford flail forsale if anyone wants one
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Monkeybusiness
Well-known member
The oil in the case drain line has to find its way up the dipper so has to overcome gravity - it wasn’t ‘horsing’ out of the banjo joint, just a bit of a constant weep.
V8Druid
do it as well as you can,but learn to do it better
couple of new Dowty washers should sort that
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Monkeybusiness
Well-known member
It has done!
Left hooker
Well-known member
Ah thought you wanted to change the side you feed the material into
Left hooker
Well-known member
Blown seals are you running machines in 2 way aux mode or 1 way
As 2 way probably will blow seals as not enough free flow to tank
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Monkeybusiness
Well-known member
It was run accidentally on a job on 2-way mode which didn’t do it much good…
CPS
Well-known member
No the case drain will be fine
Mick-the-fitter
It’s what I do!
Undo the bolts and lock nuts, and swap them over! Move the plate to a similar angle but n the opposite directionor perhaps the speed control plate needs to be the other way, running in the opposite direction ????
V8Druid
do it as well as you can,but learn to do it better
only moves 35 deg.s in total MickUndo the bolts and lock nuts, and swap them over! Move the plate to a similar angle but n the opposite direction
Gecko
Well-known member
The control shaft dictates there is only one mounting position, so there are two drains, just for convenience (for when you physicaly can't get to one side)
CPS
Well-known member
Agreed, I think it's a case of whichever side suits best
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